Naturally occurring flavonoids have been reported to possess antimicrobial activity against a wide range of pathogens. However, the antimicrobial action mechanism of these compounds has not yet been elucidated. This study investigated the mechanism underlying the antibacterial activity of four flavonoids: 6,8-diprenyleriodictyol (1), isobavachalcone (2), 6-prenylapigenin (3) and 4-hydroxyloncho...

Background: Essential Oils (EOs) of spices may serve as a potential source of antibacterial and antioxidant agents due to the presence of a diverse group of phytochemicals. In the present investigation, an attempt has been made to seek EOs from five commonly used spices that have both strong antibacterial and antioxidant potential to shed some light on these important aspects. Methods: In vitr...

The objective of this study was to analyze relationships between usage of antimicrobial drugs on dairy farms and results of antimicrobial susceptibility testing of mastitis pathogens. Exposure to selected antimicrobial drugs (n = 10) was standardized by calculation of the number of defined daily doses used per cow. Farms (n = 40) were categorized based on amount of antimicrobial exposure: organ...

patients and methods one hundred thirty-eight clinical specimens collected from different wards of imam reza hospital were identified to the species level by biochemical tests. antimicrobial susceptibility tests against kanamycin, teicoplanin, streptomycin, imipenem, ciprofloxacin, and ampicillin were performed by the disk diffusion method. the minimum inhibitory concentrations of gentamicin, s...

the ability to taste phenylthiocarbamide (ptc), a bitter organic compound, described as a bimodal autosomal trait is widely used to know the heritable trait in both genetic and anthropological studies. the present study was carried out to analyze the prevalence of ptc taste sensitivity and to determine the gene frequencies among some muslim populations of uttar pradesh, india. this study has so...

Background: Dissotis multiflora (Sm) Triana and Paullinia pinnata Linn are widely used in Cameroonian traditional medicine to treat infectious diseases. These plants were found be a reservoir of antioxidant antimicrobial agents have the potential clinic. Objective: To determine mechanism action ethanolic leaves extracts on Escherichia coli. Methodology: The microbroth dilution method was minimu...

Article history: Received: 31 Jan 2012 Accepted: 19 Apr 2012 Available online: 29 Oct 2012 ZJRMS 2013; 15(6): 43-49 Background: As relatively avirulent enteric bacteria, enterococci usually cause infections in immune-compromised patients. The antimicrobial treatment, however, is quite challenging, since enterococci are intrinsically resistant to many antibiotics. Objective of the present study...